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Issue 3, 2017
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Halogen bonded Borromean networks by design: topology invariance and metric tuning in a library of multi-component systems

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Abstract

A library of supramolecular anionic networks showing Borromean interpenetration has been prepared by self-assembly of crypt-222, several metal or ammonium halides, and five bis-homologous α,ω-diiodoperfluoroalkanes. Halogen bonding has driven the formation of these anionic networks. Borromean entanglement has been obtained starting from all the four used cations, all the three used anions, but only two of the five used diiodoperfluoroalkanes. As the change of the diiodoperfluoroalkane, the cation, or the anion has a different relative effect on the metrics and bondings of the self-assembled systems, it can be generalized that bonding, namely energetic, features play here a less influential role than metric features in determining the topology of the prepared tetra-component cocrystals. This conclusion may hold true for other multi-component systems and may function as a general heuristic principle when pursuing the preparation of multi-component systems having the same topology but different composition.

Graphical abstract: Halogen bonded Borromean networks by design: topology invariance and metric tuning in a library of multi-component systems

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Publication details

The article was received on 07 Oct 2016, accepted on 20 Oct 2016 and first published on 26 Oct 2016


Article type: Edge Article
DOI: 10.1039/C6SC04478F
Chem. Sci., 2017,8, 1801-1810
  • Open access: Creative Commons BY-NC license
    All publication charges for this article have been paid for by the Royal Society of Chemistry

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    Halogen bonded Borromean networks by design: topology invariance and metric tuning in a library of multi-component systems

    V. Kumar, T. Pilati, G. Terraneo, F. Meyer, P. Metrangolo and G. Resnati, Chem. Sci., 2017, 8, 1801
    DOI: 10.1039/C6SC04478F

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